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Biomedical subjects

R K Gongloff

Publications and source records attributed to R K Gongloff.

At least 19 recordsLinked to original sources
PubMed1994

Human immunodeficiency virus serostatus and the risk of postextraction complications.

Despite the increasing prevalence of human immunodeficiency virus (HIV) disease in the population and the increasing likelihood that HIV-positive (HIV+) patients may have an extraction, little is known about the risk of postoperative complications in this group. The goal of this investigation was to assess the risk of postoperative complications in HIV+ patients after tooth extraction. The study was designed as a retrospective cohort study with a sample consisting of 145 males who underwent tooth extraction. The patients' medical and dental records were reviewed to identify HIV serostatus, to document the frequency and type of postoperative complications, and to collect data on potential confounding variables. Forty-four patients were identified as HIV+. The postoperative complication rate in HIV+ patients was 20.9% and for HIV-negative (HIV-) patients 2.9% (relative risk = 7.0, 95% confidence interval = 2.0-25.0, P = 0.001). Furthermore, as the manifestations of the symptoms of HIV infection became more severe, the postextraction complication rate also increased (P = 0.008). The results of this study suggest that HIV+ patients have an increased risk of postextraction complications and as the level of HIV disease increases, the risk of complications also increases. While the findings of this study are consistent with studies based on case series, prospective cohort studies are required to confirm the findings.

AIDS-Related Complex↗
PubMed1992

Alveolar ridge augmentation with collagen tubes containing bone and hydroxylapatite.

The use of collagen tube containers with implants of an autogenous bone and particulate hydroxylapatite composite is reported. The tubes were used to shape the mixture and to facilitate its implantation in cases of severe mandibular resorption. Following a minimum of 60 months after implant placement and a minimum of 48 months of denture wear, the implant and overall prosthodontic success were rated favorably by the patient and the prostodontist. Individual implants were evaluated with polarized and fluorescent light microscopy and with microradiography. While the clinical results were good, the microscopic evaluation showed the amount of bone present within the implant to be variable.

Aged↗
PubMed1990

Considerations in placement of implants through existing split-thickness skin graft vestibuloplasty: a case report.

Many edentulous patients who previously have undergone vestibuloplasty with split-thickness skin grafting to improve denture stability and function seek additional help with dental implants. Problems encountered following the placement of four endosseous root-form dental implants in one such patient are presented. The anatomic and surgical considerations as well as methods available to circumvent these problems are discussed.

Dental Implantation, Endosseous↗
PubMed1989

Prevalence of the 'combination syndrome' among denture patients.

The prevalence of symptoms associated with "combination syndrome" were documented in 150 maxillary complete denture wearers. The five alveolar ridge changes that are most consequential to denture wearing and most difficult to correct surgically were found in 7% of the population studied. However, these changes were found in 24% of patients who have natural mandibular anterior teeth opposing complete maxillary dentures. This rate did not differ significantly between patients who do and do not wear a mandibular removable partial denture.

Bone Resorption↗
PubMed1989

Collagen tube containers in alveolar ridge augmentation.

This article reports the use of collagen tube containers with implants of particulate hydroxyapatite. Tubes were used to aid in the particle placement and to prevent particle migration. Implant success was judged by the patient and the prosthodontist. Results were favorable.

Adult↗
PubMed1989

Rigid endosseous implants for orthodontic and orthopedic anchorage.

Clinical rigidity ("osseointegration") was achieved by 94 percent of the titanium implants placed in dog mandibles. All loaded implants remained rigid. Inadvertent impingement on the periodontal ligament and roots of adjacent teeth was uneventful. Microradiographic imaging was more reliable than polarized light microscopy for assessing bone contact at the endosseous interface. Implants with less than 10 percent of the endosseous interface in direct contact with bone successfully resisted a continuous load of 3 N (greater than 300 grams) for 13 weeks.

Acid Etching, Dental↗
PubMed1987

Bilateral mixed density lesions in the body of the mandible.

A patient with actinomycosis involving the right and left body of the mandible is reported. Such a diagnosis, although not common, should be considered when formulating a differential diagnosis of such mixed radiopaque-radiolucent lesions. Proper collection of a specimen, transplant, and culture under anaerobic conditions is imperative if a laboratory diagnosis is to be made. A biopsy, yielding the characteristic histopathological features of actinomycosis infection, is frequently adequate for diagnosis and treatment.

Actinomycosis↗
PubMed1986

Collagen tube containers: an effective means of controlling particulate hydroxyapatite implants.

HA has been used successfully as a hard tissue graft in alveolar ridge augmentation; however, its particulate nature limits its application to select cases. A study in rats was done to examine the feasibility of a combined system of HA encased in collagen film as a hard tissue graft. Gross, radiographic, and histologic examination showed that collagen film helped to shape and contain the HA particulate during healing for as long as 4 weeks. The collagen did not interfere with the normal tissue response around the HA particulate.

Alveolar Ridge Augmentation↗
PubMed1986

A solitary, exophytic, crateriform lesion on the mandibular retromolar gingiva.

A solitary, intraoral keratoacanthoma discovered on the mandibular left retromolar mucosa in a 64-year-old black male is reported. This is the eighth lesion of this type reported to date. The patient had stopped smoking 5 years earlier and gave no history of an occupation involving pitch or tar. The lesion had the typical clinical and microscopic features of a keratoacanthoma. A 6-month recall examination showed no evidence of recurrence of the lesion.

Gingival Diseases↗
PubMed1986

Vital root retention. A 5-year experience.

An over 5-year experience with the vital root retention procedure is presented (122 roots). Elements in case selection as well as a surgical modification are noted. Results are favorable.

Adult↗
PubMed1986

Titanium mesh and particulate cancellous bone and marrow grafts to augment the maxillary alveolar ridge.

A detailed explanation of a surgical technique for grafting of deficient maxillary alveolar ridges is presented. In addition, a technical modification, for use where a fibrous hypermobile soft tissue ridge exists over the deficient maxilla is outlined. Results to date have been excellent as has been the follow-up (12-48 months); continued used of this technique and its modification is encouraged.

Alveolar Ridge Augmentation↗
PubMed1986

Collagen tubes: role in subperiosteal contour augmentation.

Collagen-contained implants of particulate hydroxylapatite (C-HA) were compared to implants of hydroxylapatite alone (HA). The collagen-contained implant was more rapidly and more firmly attached to the recipient site and demonstrated more consistent particle consolidation than implants of HA alone. Additionally, the collagen did not interfere with the favorable properties of the particulate hydroxylapatite. Results are excellent for the (C-HA) implant and warrant further investigation in both animals and in man.

Animals↗